Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 19, 2001. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9673 | N03 | E73 | 01 | 0110 | Alpha | Oct 25, 2001 | Nov 1, 2001 | Nov 15, 2001 |
| № 9672 | S21 | E69 | 03 | 0100 | Alpha | Oct 25, 2001 | Nov 1, 2001 | Nov 15, 2001 |
| № 9671 | N15 | E18 | 08 | 0030 | Beta | Oct 21, 2001 | Oct 28, 2001 | Nov 11, 2001 |
| № 9670 | S18 | E45 | 12 | 0370 | Beta-Gamma | Oct 23, 2001 | Oct 30, 2001 | Nov 13, 2001 |
| № 9669 | N13 | E28 | 20 | 0140 | Beta | Oct 22, 2001 | Oct 29, 2001 | Nov 12, 2001 |
| № 9667 | N26 | E18 | 02 | 0040 | Alpha | Oct 21, 2001 | Oct 28, 2001 | Nov 11, 2001 |
| № 9662 | N10 | W51 | 07 | 0040 | Beta | Oct 16, 2001 | Oct 23, 2001 | Nov 6, 2001 |
| № 9661 | N16 | W23 | 24 | 0660 | Beta-Gamma-Delta | Oct 18, 2001 | Oct 25, 2001 | Nov 8, 2001 |
| № 9658 | S14 | W48 | 15 | 0180 | Beta-Gamma | Oct 16, 2001 | Oct 23, 2001 | Nov 6, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to October 2001. The gray background is the average SSN index.
